worker: put this threaded worker into a class for cleanliness

Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>

worker.cpp

@@ -7,26 +7,45 @@
 // https://en.cppreference.com/w/cpp/thread/mutex
 // https://en.cppreference.com/w/cpp/thread/condition_variable
 
-std::mutex mtx;
-std::condition_variable cv;
-bool ready = false;
+namespace Dang {
+  class Worker {
+    public:
+      Worker() {
+        this->ready = false;
+        //init();
+      };
+      
+      void run() {
+        std::unique_lock<std::mutex> lock(this->mtx);
+        this->cv.wait(lock, [this] { return this->ready; }); // Wait until 'ready' is set to true
+        std::cout << "Daemon process woke up!" << std::endl;
+      };
 
-void worker() {
-    std::unique_lock<std::mutex> lock(mtx);
-    cv.wait(lock, [] { return ready; }); // Wait until 'ready' is set to true
-    std::cout << "Daemon process woke up!" << std::endl;
+      int work() {
+        std::thread daemon([this] {this->run();});
+
+        std::this_thread::sleep_for(std::chrono::seconds(5));
+        {
+          std::lock_guard<std::mutex> lock(this->mtx);
+          this->ready = true;
+        }
+        this->cv.notify_one();
+
+        daemon.join();
+        return 0;
+      };
+
+    private:
+      std::mutex mtx;
+      std::condition_variable cv;
+      bool ready;
+  };
 }
 
+
 int main() {
-    std::thread daemon(worker);
-
-    std::this_thread::sleep_for(std::chrono::seconds(5));
-    {
-        std::lock_guard<std::mutex> lock(mtx);
-        ready = true;
-    }
-    cv.notify_one();
-
-    daemon.join();
-    return 0;
+  Dang::Worker worker;
+  return worker.work();
 }
+
+// vim:set sts=2 sw=2 et: